GNU bug report logs - #69401
/etc/guix/machines.scm symlink can be garbage collected

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#69401: closed (/etc/guix/machines.scm symlink can be garbage
 collected)
Date: Sun, 07 Apr 2024 23:13:03 +0000

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Your message dated Mon, 08 Apr 2024 01:11:43 +0200
with message-id <878r1oojio.fsf <at> gnu.org>
and subject line Re: bug#69401: /etc/guix/machines.scm symlink can be garbage collected
has caused the debbugs.gnu.org bug report #69401,
regarding /etc/guix/machines.scm symlink can be garbage collected
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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69401: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=69401
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Contact help-debbugs <at> gnu.org with problems

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From: Efraim Flashner <efraim <at> flashner.co.il>
To: bug-guix <at> gnu.org
Subject: /etc/guix/machines.scm symlink can be garbage collected
Date: Mon, 26 Feb 2024 08:53:11 +0200

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Some of the build nodes behind the Berlin build farm have a childhurd
which can build packages.  Unfortunately, the symlink from
/etc/guix/machines.scm to the generated file in the store to setup
offloading has been garbage collected on several of the machines.

-- 
Efraim Flashner   <efraim <at> flashner.co.il>   רנשלפ םירפא
GPG key = A28B F40C 3E55 1372 662D  14F7 41AA E7DC CA3D 8351
Confidentiality cannot be guaranteed on emails sent or received unencrypted

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Efraim Flashner <efraim <at> flashner.co.il>
Cc: 69401-done <at> debbugs.gnu.org
Subject: Re: bug#69401: /etc/guix/machines.scm symlink can be garbage collected
Date: Mon, 08 Apr 2024 01:11:43 +0200

Ludovic Courtès <ludo <at> gnu.org> skribis:

> Ludovic Courtès <ludo <at> gnu.org> skribis:
>
>> root <at> hydra-guix-108 ~# guix gc -R $(readlink -f /run/current-system) |grep machines.scm
>> /gnu/store/xg26iis3ydik6zxqk24cyk7h9zli1d25-machines.scm
>> root <at> hydra-guix-108 ~# ls -l /etc/guix/machines.scm
>> lrwxrwxrwx 1 root root 56 Mar  7 11:53 /etc/guix/machines.scm -> /gnu/store/1171q4xhph07ll3mlzlg7igcwg3c98i1-machines.scm
>
> Turns out that both files are identical, but:
>
>   • /gnu/store/1171q4xhph07ll3mlzlg7igcwg3c98i1-machines.scm is built
>     with
>     /gnu/store/g8p09w6r78hhkl2rv1747pcp9zbk6fxv-guile-3.0.9/bin/guile
>     (‘guile-final’ ungrafted);
>
>   • /gnu/store/xg26iis3ydik6zxqk24cyk7h9zli1d25-machines.scm is built
>     with
>     /gnu/store/g49b4v7dff8xwfi7wpi8pps1ixhld3n7-guile-3.0.9/bin/guile
>     (‘guile-final’ grafted).
>
> As it turns out, <scheme-file> (used for “machines.scm”) uses
> ‘gexp->file’, which, unlike ‘gexp->script’, does not default to
> (default-guile).  That probably explains the difference.

I believe this is fixed by b30b838d5055e36be19d030db28838fec4474d98.

Ludo’.

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